摘要:
A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a phenolic compound, each having a straight chain or branched chain alkyl group or alkenyl group having 12 or more carbon atoms, the electron-donor coloring compound and the electron-acceptor compound being capable of reacting to induce color formation in the reversible thermosensitive coloring composition at the eutectic temperature thereof. The electron-donor coloring compound and the electron-acceptor compound, when fused and colored in a mixed state, with application of heat thereto, followed by rapidly cooling the fused mixture, exhibit an exothermic peak in a temperature elevation process in a differential scanning calorific anlaysis or in a differential thermal analysis. A recording medium and display medium using the above reversible thermosensitive coloring composition, a recording method of using the recording medium, a display method of using the display medium, a display method of using the display medium, and a display apparatus using the display medium are disclosed.
摘要:
There are provided sensitizers for electrophotographic light-sensitive materials including organic photoconductors and electrophotographic light-sensitive materials containing same. The sensitizers are reaction products comprising benzopyrylium salt and benzopyran.
摘要:
The invention can prevent problems due to the feeding of an OHT sheet for ink jet, such as damaging a fixing device or deterioration of the image, as well as damaging of the fixing device due to the feeding of a sheet with a thickness exceeding a regular thickness, and can transmit related information to the user, so as to enhance reliability and usability of the image forming apparatus. The image forming apparatus includes a feeding unit for feeding a recording material, an image forming unit for forming an image on the recording material fed by the feeding unit, a reading unit capable of reading an image of an area including a portion of a surface of the recording material fed by the feeding unit, a determining unit for determining whether or not the recording material is an irregular recording material, based on the image read by the reading unit, and a controlling unit for stopping or suppressing a specific operation of the apparatus, when it is determined by the determining unit that the recording material is an irregular recording material.
摘要:
A method of reversible selective manifestation of different states of a functional element is disclosed. The functional element is composed of at least two compounds and is capable of alternatively assuming (a) a first state in which the two compounds interact to form a regular aggregate structure, or (b) a second state in which the two compounds do not interact, and at least one of the two compounds is in an aggregate or crystallized state. The respective conditions for attaining one of the two states can be reversibly and extremely speedily controlled, for instance, by use of a heat application device.
摘要:
A servo-control apparatus for a motor includes a position detector for detecting a rotational position of a motor, a rotational speed signal generator for generating a rotational speed signal corresponding to a rotational speed of a motor, and a digital controller for generating an exciting electric current to be supplied to a coil of the motor as a pulse width modulated signal in accordance with the rotational speed signal from the rotational speed signal generator. A switching signal for switching the exciting electric current to be supplied to the coil of the motor is formed by a pre-driver in accordance with the position detection signal from the position detector, and the pre-driver combines the switching signal with the pulse width modulated signal from the digital controller to generate an electric current control signal by which the motor is driven, thereby coping with the speed change of the motor quickly and stably.
摘要:
Sample numbers, which are encoded information about samples including a body fluid and contained in original containers, are affixed to the original containers. The test system memorizes the sample number including a rack number attached to each original container rack and coordinates of each original container in the original container rack. Then, it determines whether or not a sample in the original containers should be dispensed in each dispensing container set in the dispensing container rack using the pre-dispensing sample positional information including a rack number attached to each original container rack and coordinates of each original container in the original container rack, as a key. Based on the determination, an automatic dispensing machine dispense a to-be-dispensed sample into an associated one of the dispensing containers, and memorizes the sample numbers in association with post-dispensing sample positional information including a rack number affixed to the dispensing container rack where sample-dispensed dispensing containers are set and coordinates of the dispensing containers in the dispensing container rack. The sample number may have a mark obtained by simplifying the sample number in accordance with a predetermined regularity so that operators can find sample easily.
摘要:
Sample numbers, which are encoded information about samples including a body fluid and contained in original containers, are affixed to the original containers. The test system memorizes the sample number including a rack number attached to each original container rack and coordinates of each original container in the original container rack. Then, it determines whether or not a sample in the original containers should be dispensed in each dispensing container set in the dispensing container rack using the pre-dispensing sample positional information including a rack number attached to each original container rack and coordinates of each original container in the original container rack, as a key. Based on the determination, an automatic dispensing machine dispense a to-be-dispensed sample into an associated one of the dispensing containers, and memorizes the sample numbers in association with post-dispensing sample positional information including a rack number affixed to the dispensing container rack where sample-dispensed dispensing containers are set and coordinates of the dispensing containers in the dispensing container rack. The sample number may have a mark obtained by simplifying the sample number in accordance with a predetermined regularity so that operators can find sample easily.
摘要:
The present invention relates to a photosensitive material for use in electrophotography comprising a photoconductive layer on which there is a transparent protective layer consisting essentially of a substance resulting from partial hydrolysis of a mixture of (a) a compound having the following general formula I, (b) a copolymer of a compound having the general formula II with a compound having the general formula III or maleic anhydride and (c) a compound having the general formula IV,(1) General formula I(R.sup.1).sub.l Si(OR.sup.2).sub.m [wherein R.sup.1 is a C.sub.1-4 alkyl radical, vinyl radical, .gamma.-methacryloxypropyl radical, phenyl radical, .gamma.-glycidoxypropyl radical, .gamma.-chloropropyl radical, .gamma.-mercaptopropyl radical, .gamma.-.beta.(aminoethyl).gamma.-aminopropyl radical or .gamma.-aminopropyl radical; R.sup.2 is a hydroxyethylalkyl ether radical or C.sub.1-4 alkyl radical; l is 0-2; and m is 2-4.](2) General formula II ##STR1## [wherein R.sup.3 is hydrogen or a methyl radical; R.sup.4 is hydrogen or a C.sub.1-4 alkyl radical; n is 1-4; and q is 1-3.](3) General formula III ##STR2## [wherein R.sup.5 is hydrogen or a methyl radical; R.sup.6 is --COOR.sup.7 (R.sup.7 is hydrogen or a C.sub.1-12 alkyl radical, hydroxyalkyl radical, glycidyl radical or dimethylaminoalkyl radical), --CN, --OCOCH.sub.3, --CONH.sub.2, ##STR3## (4) General formula IV ##STR4## [wherein R.sup.8 is a C.sub.1-4 alkyl radical or phenyl radical; z is 2-25.]
摘要:
Photoconductive, film forming nitropyrene-formaldehyde resins characterized by a repeating structural unit of the formula: ##SPC1##And process for preparation, the photoconductive films themselves, and such films on an electrically conductive support.
摘要:
To provide a recording-material type determination apparatus and recording-material type determination method which can determine the type of recording material using simple calculations as well as to provide an image forming apparatus capable of obtaining stable image quality independent of the type of recording material using the apparatus and method.Based on data read by a read unit which reads surface images of recording material, a first calculation unit calculates the depth of irregularities in the surface of recording material and stores the results of calculation in a register A while a second calculation unit calculates the spacing of irregularities on the surface of the recording material and stores the results of calculation in a register B. Based on the values in the registers A and B, the type of recording material such as gloss paper, plain paper, rough paper or OHT is determined.